There are many techniques for producing brood-rearing cover, but the easiest is to simply fallow, or idle a piece of cropland. You probably have several unproductive field edges, or a few small fields where cropping is not profitable. These areas should be left idle. To maintain their value as brood-rearing cover, they should be fall-disced every other year. Discing in late winter or early spring is also effective, but it is often too wet to disc during this period. Establish a rotation so that all your brood-rearing areas are not disced during the same year. If erosion is a concern, sow the areas to winter wheat at 1/2 to 3/4 the normal rate. Weedy winter wheat stands make excellent quail chick cover.
If you are not comfortable simply letting weeds grow, disc the areas, then sow them with 5 lbs of kobe lespedeza, 5 lbs of Korean lespedeza and 1 to 2 lbs of partridge pea per acre in February, March or early April. This seeding rate may seem low to you; but remember, the best quail chick habitat should not be too thick. By planting at the rates described above, the result will be a good mix of planted vegetation and annual weeds-perfect chick habitat. These areas will provide good winter forage, too.